Monoprice 106879 1 Channel Passive CCTV BALUN - Video/Audio/Power Over Cat5 (Black) Average conditions allow transmission up to 1 000 ft. On longer runs video quality might be slightly reduced Simply connect the BNC ends to your camera and your recording device or display connect the DC ends to a Power Supply and the Camera then connect your network cable through the RJ45 jacks Average conditions allow transmission up to 1 000 ft. On longer runs video quality might be slightly reduced